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Finding the Fourth Proportional to 4,357.68, 6,531.28 and 2,509.64

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Solution

The fourth proportional to 4,357.68, 6,531.28 and 2,509.64 is: 3,761.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,357.68 : 6,531.28 = 2,509.64 : x
  2. Step 2: Convert to fraction form
    4,357.68/6,531.28 = 2,509.64/x
  3. Step 3: Cross multiply
    4,357.68x = 6,531.28 × 2,509.64
  4. Step 4: Simplify right side
    4,357.68x = 16,391,161.54
  5. Step 5: Solve for x
    x = 16,391,161.54/4,357.68
  6. Step 6: Final answer
    x = 3,761.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.